Home / 80,111.95-120,159.27-26,797.88

Finding the Fourth Proportional to 80,111.95, 120,159.27 and 26,797.88

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Solution

The fourth proportional to 80,111.95, 120,159.27 and 26,797.88 is: 40,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,111.95 : 120,159.27 = 26,797.88 : x
  2. Step 2: Convert to fraction form
    80,111.95/120,159.27 = 26,797.88/x
  3. Step 3: Cross multiply
    80,111.95x = 120,159.27 × 26,797.88
  4. Step 4: Simplify right side
    80,111.95x = 3,220,012,963.56
  5. Step 5: Solve for x
    x = 3,220,012,963.56/80,111.95
  6. Step 6: Final answer
    x = 40,193.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.